268878276 has 18 divisors (see below), whose sum is σ = 679664622. Its totient is φ = 89626080.

The previous prime is 268878271. The next prime is 268878293. The reversal of 268878276 is 672878862.

It can be written as a sum of positive squares in only one way, i.e., 169676676 + 99201600 = 13026^2 + 9960^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (268878271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3734385 + ... + 3734456.

Almost surely, 2^268878276 is an apocalyptic number.

It is an amenable number.

268878276 is an abundant number, since it is smaller than the sum of its proper divisors (410786346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268878276 is a wasteful number, since it uses less digits than its factorization.

268878276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7468851 (or 7468846 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 268878276 is about 16397.5082253372. The cubic root of 268878276 is about 645.4340975386.

The spelling of 268878276 in words is "two hundred sixty-eight million, eight hundred seventy-eight thousand, two hundred seventy-six".